1/*===------------ avx512bf16intrin.h - AVX512_BF16 intrinsics --------------===
2 *
3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 * See https://llvm.org/LICENSE.txt for license information.
5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 *
7 *===-----------------------------------------------------------------------===
8 */
9#ifndef __IMMINTRIN_H
10#error "Never use <avx512bf16intrin.h> directly; include <immintrin.h> instead."
11#endif
12
13#ifndef __AVX512BF16INTRIN_H
14#define __AVX512BF16INTRIN_H
15
16typedef short __m512bh __attribute__((__vector_size__(64), __aligned__(64)));
17typedef short __m256bh __attribute__((__vector_size__(32), __aligned__(32)));
18typedef unsigned short __bfloat16;
19
20#define __DEFAULT_FN_ATTRS512 \
21  __attribute__((__always_inline__, __nodebug__, __target__("avx512bf16"), \
22                 __min_vector_width__(512)))
23#define __DEFAULT_FN_ATTRS                                                     \
24  __attribute__((__always_inline__, __nodebug__, __target__("avx512bf16")))
25
26/// Convert One BF16 Data to One Single Float Data.
27///
28/// \headerfile <x86intrin.h>
29///
30/// This intrinsic does not correspond to a specific instruction.
31///
32/// \param __A
33///    A bfloat data.
34/// \returns A float data whose sign field and exponent field keep unchanged,
35///    and fraction field is extended to 23 bits.
36static __inline__ float __DEFAULT_FN_ATTRS _mm_cvtsbh_ss(__bfloat16 __A) {
37  return __builtin_ia32_cvtsbf162ss_32(__A);
38}
39
40/// Convert Two Packed Single Data to One Packed BF16 Data.
41///
42/// \headerfile <x86intrin.h>
43///
44/// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
45///
46/// \param __A
47///    A 512-bit vector of [16 x float].
48/// \param __B
49///    A 512-bit vector of [16 x float].
50/// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
51///    conversion of __B, and higher 256 bits come from conversion of __A.
52static __inline__ __m512bh __DEFAULT_FN_ATTRS512
53_mm512_cvtne2ps_pbh(__m512 __A, __m512 __B) {
54  return (__m512bh)__builtin_ia32_cvtne2ps2bf16_512((__v16sf) __A,
55                                                    (__v16sf) __B);
56}
57
58/// Convert Two Packed Single Data to One Packed BF16 Data.
59///
60/// \headerfile <x86intrin.h>
61///
62/// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
63///
64/// \param __A
65///    A 512-bit vector of [16 x float].
66/// \param __B
67///    A 512-bit vector of [16 x float].
68/// \param __W
69///    A 512-bit vector of [32 x bfloat].
70/// \param __U
71///    A 32-bit mask value specifying what is chosen for each element.
72///    A 1 means conversion of __A or __B. A 0 means element from __W.
73/// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
74///    conversion of __B, and higher 256 bits come from conversion of __A.
75static __inline__ __m512bh __DEFAULT_FN_ATTRS512
76_mm512_mask_cvtne2ps_pbh(__m512bh __W, __mmask32 __U, __m512 __A, __m512 __B) {
77  return (__m512bh)__builtin_ia32_selectw_512((__mmask32)__U,
78                                        (__v32hi)_mm512_cvtne2ps_pbh(__A, __B),
79                                        (__v32hi)__W);
80}
81
82/// Convert Two Packed Single Data to One Packed BF16 Data.
83///
84/// \headerfile <x86intrin.h>
85///
86/// This intrinsic corresponds to the <c> VCVTNE2PS2BF16 </c> instructions.
87///
88/// \param __A
89///    A 512-bit vector of [16 x float].
90/// \param __B
91///    A 512-bit vector of [16 x float].
92/// \param __U
93///    A 32-bit mask value specifying what is chosen for each element.
94///    A 1 means conversion of __A or __B. A 0 means element is zero.
95/// \returns A 512-bit vector of [32 x bfloat] whose lower 256 bits come from
96///    conversion of __B, and higher 256 bits come from conversion of __A.
97static __inline__ __m512bh __DEFAULT_FN_ATTRS512
98_mm512_maskz_cvtne2ps_pbh(__mmask32 __U, __m512 __A, __m512 __B) {
99  return (__m512bh)__builtin_ia32_selectw_512((__mmask32)__U,
100                                        (__v32hi)_mm512_cvtne2ps_pbh(__A, __B),
101                                        (__v32hi)_mm512_setzero_si512());
102}
103
104/// Convert Packed Single Data to Packed BF16 Data.
105///
106/// \headerfile <x86intrin.h>
107///
108/// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
109///
110/// \param __A
111///    A 512-bit vector of [16 x float].
112/// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
113static __inline__ __m256bh __DEFAULT_FN_ATTRS512
114_mm512_cvtneps_pbh(__m512 __A) {
115  return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
116                                              (__v16hi)_mm256_undefined_si256(),
117                                              (__mmask16)-1);
118}
119
120/// Convert Packed Single Data to Packed BF16 Data.
121///
122/// \headerfile <x86intrin.h>
123///
124/// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
125///
126/// \param __A
127///    A 512-bit vector of [16 x float].
128/// \param __W
129///    A 256-bit vector of [16 x bfloat].
130/// \param __U
131///    A 16-bit mask value specifying what is chosen for each element.
132///    A 1 means conversion of __A. A 0 means element from __W.
133/// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
134static __inline__ __m256bh __DEFAULT_FN_ATTRS512
135_mm512_mask_cvtneps_pbh(__m256bh __W, __mmask16 __U, __m512 __A) {
136  return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
137                                                        (__v16hi)__W,
138                                                        (__mmask16)__U);
139}
140
141/// Convert Packed Single Data to Packed BF16 Data.
142///
143/// \headerfile <x86intrin.h>
144///
145/// This intrinsic corresponds to the <c> VCVTNEPS2BF16 </c> instructions.
146///
147/// \param __A
148///    A 512-bit vector of [16 x float].
149/// \param __U
150///    A 16-bit mask value specifying what is chosen for each element.
151///    A 1 means conversion of __A. A 0 means element is zero.
152/// \returns A 256-bit vector of [16 x bfloat] come from conversion of __A.
153static __inline__ __m256bh __DEFAULT_FN_ATTRS512
154_mm512_maskz_cvtneps_pbh(__mmask16 __U, __m512 __A) {
155  return (__m256bh)__builtin_ia32_cvtneps2bf16_512_mask((__v16sf)__A,
156                                                (__v16hi)_mm256_setzero_si256(),
157                                                (__mmask16)__U);
158}
159
160/// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
161///
162/// \headerfile <x86intrin.h>
163///
164/// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
165///
166/// \param __A
167///    A 512-bit vector of [32 x bfloat].
168/// \param __B
169///    A 512-bit vector of [32 x bfloat].
170/// \param __D
171///    A 512-bit vector of [16 x float].
172/// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
173///  __A, __B and __D
174static __inline__ __m512 __DEFAULT_FN_ATTRS512
175_mm512_dpbf16_ps(__m512 __D, __m512bh __A, __m512bh __B) {
176  return (__m512)__builtin_ia32_dpbf16ps_512((__v16sf) __D,
177                                             (__v16si) __A,
178                                             (__v16si) __B);
179}
180
181/// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
182///
183/// \headerfile <x86intrin.h>
184///
185/// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
186///
187/// \param __A
188///    A 512-bit vector of [32 x bfloat].
189/// \param __B
190///    A 512-bit vector of [32 x bfloat].
191/// \param __D
192///    A 512-bit vector of [16 x float].
193/// \param __U
194///    A 16-bit mask value specifying what is chosen for each element.
195///    A 1 means __A and __B's dot product accumulated with __D. A 0 means __D.
196/// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
197///  __A, __B and __D
198static __inline__ __m512 __DEFAULT_FN_ATTRS512
199_mm512_mask_dpbf16_ps(__m512 __D, __mmask16 __U, __m512bh __A, __m512bh __B) {
200  return (__m512)__builtin_ia32_selectps_512((__mmask16)__U,
201                                       (__v16sf)_mm512_dpbf16_ps(__D, __A, __B),
202                                       (__v16sf)__D);
203}
204
205/// Dot Product of BF16 Pairs Accumulated into Packed Single Precision.
206///
207/// \headerfile <x86intrin.h>
208///
209/// This intrinsic corresponds to the <c> VDPBF16PS </c> instructions.
210///
211/// \param __A
212///    A 512-bit vector of [32 x bfloat].
213/// \param __B
214///    A 512-bit vector of [32 x bfloat].
215/// \param __D
216///    A 512-bit vector of [16 x float].
217/// \param __U
218///    A 16-bit mask value specifying what is chosen for each element.
219///    A 1 means __A and __B's dot product accumulated with __D. A 0 means 0.
220/// \returns A 512-bit vector of [16 x float] comes from  Dot Product of
221///  __A, __B and __D
222static __inline__ __m512 __DEFAULT_FN_ATTRS512
223_mm512_maskz_dpbf16_ps(__mmask16 __U, __m512 __D, __m512bh __A, __m512bh __B) {
224  return (__m512)__builtin_ia32_selectps_512((__mmask16)__U,
225                                       (__v16sf)_mm512_dpbf16_ps(__D, __A, __B),
226                                       (__v16sf)_mm512_setzero_si512());
227}
228
229/// Convert Packed BF16 Data to Packed float Data.
230///
231/// \headerfile <x86intrin.h>
232///
233/// \param __A
234///    A 256-bit vector of [16 x bfloat].
235/// \returns A 512-bit vector of [16 x float] come from convertion of __A
236static __inline__ __m512 __DEFAULT_FN_ATTRS512 _mm512_cvtpbh_ps(__m256bh __A) {
237  return _mm512_castsi512_ps((__m512i)_mm512_slli_epi32(
238      (__m512i)_mm512_cvtepi16_epi32((__m256i)__A), 16));
239}
240
241/// Convert Packed BF16 Data to Packed float Data using zeroing mask.
242///
243/// \headerfile <x86intrin.h>
244///
245/// \param __U
246///    A 16-bit mask. Elements are zeroed out when the corresponding mask
247///    bit is not set.
248/// \param __A
249///    A 256-bit vector of [16 x bfloat].
250/// \returns A 512-bit vector of [16 x float] come from convertion of __A
251static __inline__ __m512 __DEFAULT_FN_ATTRS512
252_mm512_maskz_cvtpbh_ps(__mmask16 __U, __m256bh __A) {
253  return _mm512_castsi512_ps((__m512i)_mm512_slli_epi32(
254      (__m512i)_mm512_maskz_cvtepi16_epi32((__mmask16)__U, (__m256i)__A), 16));
255}
256
257/// Convert Packed BF16 Data to Packed float Data using merging mask.
258///
259/// \headerfile <x86intrin.h>
260///
261/// \param __S
262///    A 512-bit vector of [16 x float]. Elements are copied from __S when
263///     the corresponding mask bit is not set.
264/// \param __U
265///    A 16-bit mask.
266/// \param __A
267///    A 256-bit vector of [16 x bfloat].
268/// \returns A 512-bit vector of [16 x float] come from convertion of __A
269static __inline__ __m512 __DEFAULT_FN_ATTRS512
270_mm512_mask_cvtpbh_ps(__m512 __S, __mmask16 __U, __m256bh __A) {
271  return _mm512_castsi512_ps((__m512i)_mm512_mask_slli_epi32(
272      (__m512i)__S, (__mmask16)__U,
273      (__m512i)_mm512_cvtepi16_epi32((__m256i)__A), 16));
274}
275
276#undef __DEFAULT_FN_ATTRS
277#undef __DEFAULT_FN_ATTRS512
278
279#endif
280